80800165 has 4 divisors (see below), whose sum is σ = 96960204. Its totient is φ = 64640128.

The previous prime is 80800151. The next prime is 80800183. The reversal of 80800165 is 56100808.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8328996 + 72471169 = 2886^2 + 8513^2 .

It is a cyclic number.

It is not a de Polignac number, because 80800165 - 2¹¹ = 80798117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8080012 + ... + 8080021.

It is an arithmetic number, because the mean of its divisors is an integer number (24240051).

Almost surely, 2^80800165 is an apocalyptic number.

It is an amenable number.

80800165 is a deficient number, since it is larger than the sum of its proper divisors (16160039).

80800165 is a wasteful number, since it uses less digits than its factorization.

80800165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16160038.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 80800165 is about 8988.8911996975. The cubic root of 80800165 is about 432.3187608650.

The spelling of 80800165 in words is "eighty million, eight hundred thousand, one hundred sixty-five".